At 12:25 AM 7/24/2002 -0400, Huw Powell wrote: >the 4kq has the little top hose as well. it is a circuit. coolant >flows into the exp. tank via the little hose, and drains back into the >radiator via the larger, lower hose. Whatever you do, don't block it. OK! I no longer have a 4kq to look at so I was going on memory. I'll keep the vent. thanks, Dave C.